Security Headers Analyzer MCP tool
MCP
findutils:security_headers_analyzer Grade a set of HTTP response headers for security: returns a 0-100 score, a letter grade (A+ to F), a pass/fail/warning summary, and a per-header finding with a recommendation for CSP, HSTS, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, and the Cross-Origin-* headers. Pass the headers you already have; this tool does not fetch the URL.
Arguments
application/json-
headers
object required
Response headers as an object of header name → value (case-insensitive), e.g. {"content-security-policy": "default-src 'self'"}. A raw "Name: value" block string (one header per line, as copied from curl -I) is also accepted.
-
url
string optional
Optional URL the headers came from. Echoed in the result only.
Example arguments
Verified{
"headers": {
"content-security-policy": "default-src 'self'",
"strict-transport-security": "max-age=31536000",
"x-content-type-options": "nosniff",
"x-frame-options": "DENY"
},
"url": "https://example.com"
}More Network tools
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